Tenacity may be the best on the market. Slowly getting rid of the crabgrass taking over the back yard. Hubby said the yard was looking like crap. We have dying yellow spots. "Those are the weeds and crabgrass... honey bunch" I haven't tried without the Surfactant, so I would guess you need both.

Syngenta Herbicide was effective in killing crabgrass in their yard with just one application. The herbicide helped slow down the spread of the crabgrass infestation.

Definitely wear personal protective equipment (ppe) and following the label instructions for proper application. Noticed that the crabgrass turned white after 2-3 days of applying the product and eventually died down to the roots within 2-4 weeks. Syngenta Herbicide is a reliable and effective solution for controlling and eliminating crabgrass.

This stuff works, after spraying my lawn faded in color for about 3 weeks before returning to green. But when it did, it looked really good. I also bought Scott's lawn food that I laid down after 2-3 weeks to bring back the color.

When mixed correctly it killed the crabgrass in my yard. I tried it in small areas first then treated my large yard. It definitely slowed the spread of the infestation of crab grass, but my yard got overrun this year. Slowly keeping the weeds at bay. Just wear ppe and follow the label. Crabs turn white after 2-3 days if properly applied, then should kill down to the roots in 2-4 weeks. Its best stuff out there it just works.

Used this as a post emergent, spot spraying crab grass. Turned everything white in a week, applied again and it killed the crabgrass in two weeks.
Be careful it could kill your lawn if you overspray